diff --git a/Cargo.toml b/Cargo.toml
index 7adeb5bf4..27aaa5675 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -82,7 +82,7 @@ http3 = ["rustls-tls-manual-roots", "dep:h3", "dep:h3-quinn", "dep:quinn", "dep:
 
 
 # Internal (PRIVATE!) features used to aid testing.
-# Don't rely on these whatsoever. They may disappear at anytime.
+# Don't rely on these whatsoever. They may disappear at any time.
 
 # Enables common types used for TLS. Useless on its own.
 __tls = ["dep:rustls-pemfile", "tokio/io-util"]
@@ -160,19 +160,19 @@ tokio-socks = { version = "0.5.1", optional = true }
 hickory-resolver = { version = "0.24", optional = true, features = ["tokio-runtime"] }
 
 # HTTP/3 experimental support
-h3 = { version = "0.0.5", optional = true }
-h3-quinn = { version = "0.0.6", optional = true }
+h3 = { version = "0.0.6", optional = true }
+h3-quinn = { version = "0.0.7", optional = true }
 quinn = { version = "0.11.1", default-features = false, features = ["rustls", "runtime-tokio"], optional = true }
 slab = { version = "0.4.9", optional = true } # just to get minimal versions working with quinn
 futures-channel = { version = "0.3", optional = true }
 
 
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
-env_logger = "0.10"
+env_logger = "0.11"
 hyper = { version = "1.1.0", default-features = false, features = ["http1", "http2", "client", "server"] }
 hyper-util = { version = "0.1.3", features = ["http1", "http2", "client", "client-legacy", "server-auto", "tokio"] }
 serde = { version = "1.0", features = ["derive"] }
-libflate = "1.0"
+libflate = "2.1"
 brotli_crate = { package = "brotli", version = "6.0.0" }
 zstd_crate = { package = "zstd", version = "0.13" }
 doc-comment = "0.3"
@@ -184,7 +184,7 @@ rustls = { version = "0.23", default-features = false, features = ["ring"] }
 windows-registry = "0.2"
 
 [target.'cfg(target_os = "macos")'.dependencies]
-system-configuration = { version = "0.5.1", optional = true }
+system-configuration = { version = "0.6.0", optional = true }
 
 # wasm